Hypothesis test for the difference between two means

Assignment Help Basic Statistics
Reference no: EM1322679

Hypothesis test for the difference between two means.

The president of the American Insurance Institute wants to compare the yearly costs of auto insurance offered by two leading companies. He selects a sample of 15 families, some with only a single insured driver, others with several teenage drivers, and pays each family a stipend to contact the two companies and ask for a price quote. To make the data comparable, certain features, such as the deductible amount and limits of liability, are standardized. The sample information is reported below. At the 0.10 significance level, can we conclude that there is a difference in the amounts quoted?

Family

Progressive

Car Insurance

GEICO

Mutual Insurance

Becker

$2,090

$1,610

Berry

1,683

1,247

Cobb

1,402

2,327

Debuck

1,830

1,367

Dubrul

930

1,461

Eckroate

697

1,789

German

1,741

1,621

Glasson

1,129

1,914

King

1,018

1,956

Kucic

1,881

1,772

Meredith

1,571

1,375

Obeid

874

1,527

Price

1,579

1,767

Phillips

1,577

1,636

Tresize

860

1,188

 

Reference no: EM1322679

Questions Cloud

Find the p-value : Hypothesis testing of single mean - can we conclude that the mean weight is greater than 16 ounces? Determine the  p -value.
Hypothesis testing of single mean : Hypothesis testing of single mean - The Wall Street Journal reported that the 30-year mortgage rate is now less than 6%.
Population standard deviations - hypothesis test : Hypothesis test for the difference between two means - Assume the population standard deviations are not the same. At the 0.05 significance level, is there a difference in the mean waiting time?
Program to calculate value of d=b squared-4ac : Provided that a method takes three parameters a, b, c, of type double, state some code, to be involved as a part of the method, which calculates whether the value of "b squared" – 4ac is negative. If negative, code prints out the message "no real sol..
Hypothesis test for the difference between two means : Hypothesis test for the difference between two means - To make the data comparable, certain features, such as the deductible amount and limits of liability, are standardized.
Draw the scatter plot for the variables : Correlation based on Scatter Plot - Draw the scatter plot for the variables.
Status of 3g and 4g network technologies : Describe the status of 3G and 4G network technologies in detail and also carry out some of the research work on the future of 5G technology.
Effects of technology : Select a new technology that interests you and analyze it from the sociological point of view. What do you consider this technology would contribute towards the society?
Database management : Additionally to limiting the actual tables or columns that a user has access to, you may also limit what the user does. Specify some of the ROLES you could allocate to the users and what would these roles do?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determining the strength of given data using correlation

Determine the strength of the causal relationship between monthly sales and new home construction by using correlation.

  Interpretation of a confidence level

For a given confidence interval, what is the interpretation of a 96% confidence level?

  Explain one sample z test for p-value approach

Find out the test statistic P-value, and critical value, and state the final conclusion. The mean IQ score of statistic professors is less than 120. Sample data: n = 46. Suppose that = 17, and the significance level is = 0.05.

  Calculating the standard error

Calculate the standard error. With 95% confidence, find out the margin of error?

  Sample size-population proportion

How many cans of paint should the sample contain if the researcher wants to be 98% certain of being within one percentage point of the true proportion of this chemical?

  Proportion testing employs the rare event rule

A gender selection method is effective in helping couples have baby girls, and among 45 babies, 24 are girls. Create subjective estimates to conclude that the evidence does support the claim or that the evidence does not support the claim. Use the..

  To make a p-chart for the nonconforming units

To make a p-chart for the nonconforming units. The coating of the candy bar is currently make by a process which can result in surface cracking.

  Mean difference among the groups

To determine whether there exists mean difference among the groups:

  Finding the probability using combination

Let  C   be the event that a diner gets the correct meal and let  N   be the event that a diner gets an incorrect meal. Find the probability that:

  Normality assumption to build confidence interval

What is the best prediction for the number of products sold based on advertising costs of $7000?

  Testing for one sample population proportion

What decision should be made regarding the null hypothesis?

  Confidence interval limits

Do the confidence interval limits contain 98.6F? What does the sample suggest about the use of 98.6F as the mean body temp.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd